Léonard Noth
ENFRDE

I build the thing,I lead the peoplebuilding it,and I teach it.

Léonard Noth
Fribourg, Switzerland
2013
writing code since
MSc
data science, thesis 6/6
2
products in production
3
languages I work in

I got my first computer in 2010 and started bending software to my will soon after. Game bots and addons, the kind of code nobody asks you to write. Around 2021 the interest turned from making machines do tricks to making them useful: data science, then AI in products people rely on.

Today I'm CTO of a small team where I'm the only full-time engineer, which means I own the architecture, the infrastructure, the AI pipeline and the release process, and I turn what the research and pedagogy side needs into systems that hold up. I also still teach at HEIA-FR, which is the fastest way I know to find out which of your convictions survive contact with a room full of students.

The questions I care about are rarely purely technical: build it or buy it, how far to trust the machine, what to teach someone who will work beside one. That's what the journal is for.

How I got here

  1. 2010

    First computer. The IT world arrives through video games and simple software.

  2. 2013

    First code: bending things that already existed. Dofus bots, World of Warcraft addons. Nobody asked for any of it.

  3. 2015

    The passion stops being a phase. It hasn't left since.

  4. 2018

    First system used daily by a company, a CRM that's still running.

  5. 2020

    Co-founded PYME while studying.

  6. 2021

    Turned to data science and AI: smarter bots, trading strategies, face swaps. The machine as a tool, not a toy.

  7. 2024

    MSc in Data Science. From teaching assistant to lecturer, and a move to the iCoSys institute with YEPA's research in tow.

  8. 2026

    CTO. And a shift in what I care about: making AI genuinely useful to people, not another chatbot.

Where I've worked

skills →

Yllyl

2026–present

CTO

The whole technical surface of two products, YEPA first among them: architecture, infrastructure, the AI pipeline, and the release process. I'm the only full-time engineer, so I also translate what the research and pedagogy side needs into systems that hold up, and manage the students and freelancers who help build them.

HEIA-FR, iCoSys institute

2024–present

Data scientist, developer & project manager

The professor who first hired me changed institutes, so I followed. YEPA's Innosuisse research has been managed from here since 2024.

HEIA-FR

2022–present

Teaching assistant, then lecturer for IHM & PS4

Teaching assistant since September 2022, then lecturer. Human-Computer Interaction (IHM): standing in for the lecturer and working as her assistant. Semester Project 4 (PS4): responsible for the data and AI side, and backup on the HCI and web front-end side. Since February 2026 at 20%, alongside the CTO role.

HEIA-FR, iSIS institute

2021–2024

Project manager & lead developer

Project manager and main developer on YEPA's Innosuisse research phase, alongside client mandates across many stacks. Full-time for the summer of 2021, then part-time through the master's.

PYME

2020–2023

Co-founder & software engineer

Client work and products built alongside my studies, with repeat clients as the only metric that mattered.

ARAS Nyon

2018–2022

Software engineer & project manager

Built their custom CRM during a six-month full-time internship, then kept testing, maintaining and extending it part-time for over three years.

LEM Switzerland SA

2017 · 2019

Software engineer

Two summers, two years apart. Optimised an internal site, and joined HERMES, a company-wide data-collection project, modelling automated screwing stations for the production chain.

Studies

  • MSc in Engineering, Data Science & Data Analytics
    HES-SO//Master2021–2024
    Thesis SAFE, graded 6/6, supervised by Dr. Sandy Ingram
  • Bachelor in Computer Science
    HEIA-FR2018–2021
    Bachelor work Dutine, graded 5.8, supervised by Pascal Bruegger
  • Bachelor studies
    UNIGE2015–2017
  • Scientific baccalaureate
    Lycée Mme de Staël2012–2015

Languages

  • FrançaisMother tongue
  • EnglishC1+
  • DeutschB2
Write to me